What is the purpose of a desiccator in the laboratory?

The purpose of a desiccator in the laboratory is to cool items and prevent moisture absorption. A desiccator is a sealed container that is often filled with a drying agent, such as silica gel, which absorbs moisture from the air inside the jar. When samples are placed in a desiccator, they can be kept dry and protected from humidity, which is essential for certain experiments and the preservation of hygroscopic materials that can absorb moisture from the atmosphere. This is particularly crucial when working with substances that are sensitive to moisture or when conducting analytical measurements that require anhydrous conditions. Thus, the correct answer accurately captures the primary function of a desiccator in laboratory settings.